971497 has 4 divisors (see below), whose sum is σ = 1013760. Its totient is φ = 929236.

The previous prime is 971491. The next prime is 971501. The reversal of 971497 is 794179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-971497 is a prime.

It is a d-powerful number, because it can be written as 9⁴ + 7⁵ + 4⁸ + 1 + 9⁵ + 7⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21097 + ... + 21142.

It is an arithmetic number, because the mean of its divisors is an integer number (253440).

2⁹⁷¹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

971497 is a deficient number, since it is larger than the sum of its proper divisors (42263).

971497 is a wasteful number, since it uses less digits than its factorization.

971497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42262.

The product of its digits is 15876, while the sum is 37.

The square root of 971497 is about 985.6454737886. The cubic root of 971497 is about 99.0407273847.

The spelling of 971497 in words is "nine hundred seventy-one thousand, four hundred ninety-seven".